1641938716 has 24 divisors (see below), whose sum is σ = 3181401216. Its totient is φ = 735195120.

The previous prime is 1641938663. The next prime is 1641938717. The reversal of 1641938716 is 6178391461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1641938717) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 275536 + ... + 281431.

It is an arithmetic number, because the mean of its divisors is an integer number (132558384).

Almost surely, 2^1641938716 is an apocalyptic number.

It is an amenable number.

1641938716 is a deficient number, since it is larger than the sum of its proper divisors (1539462500).

1641938716 is a wasteful number, since it uses less digits than its factorization.

1641938716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557049 (or 557047 counting only the distinct ones).

The product of its digits is 217728, while the sum is 46.

The square root of 1641938716 is about 40520.8429823468. The cubic root of 1641938716 is about 1179.7382154117.

The spelling of 1641938716 in words is "one billion, six hundred forty-one million, nine hundred thirty-eight thousand, seven hundred sixteen".